Q. ∠1 and ∠2 are vertical angles. If m∠1=(8x−28)∘ and m∠2=(4x+4)∘, then find the measure of ∠2.Answer:
Set Equal Expressions: Vertical angles are congruent, which means they have equal measures. Therefore, we can set the expressions for m/angle 1 and m/angle 2 equal to each other to find the value of x.Equation: (8x−28)=(4x+4)
Subtract x Terms: Now, we will solve for x by first subtracting 4x from both sides of the equation to get the x terms on one side.(8x−28)−4x=(4x+4)−4x4x−28=4
Add 28: Next, we will add 28 to both sides of the equation to isolate the x term.4x−28+28=4+284x=32
Divide by 4: Now, we will divide both sides of the equation by 4 to solve for x.44x=432x=8
Substitute x Value: With the value of x found, we can now substitute it back into the expression for m/angle 2 to find its measure.m/angle 2=(4x+4)m/angle 2=(4×8)+4m/angle 2=32+4m/angle 2=36 degrees